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Carl Pedersen vs Peter H Norby
Hjoerring (1971), rd 4
Caro-Kann Defense: Exchange. Rubinstein Variation (B13)  ·  1-0

ANALYSIS [x]

FEN COPIED

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Kibitzer's Corner
< Earlier Kibitzing  · PAGE 2 OF 2 ·  Later Kibitzing>
Jan-12-07  euripides: <marco> I see, thanks.
Jan-12-07  TrueBlue: that was easy, straight forward combination, maybe 5 seconds to find it and verify it.
Jan-12-07  Chris1Clark: Either I'm getting better or friday is getting easier. Less than a minute to figure but also no idea why 38. Qh6+
Jan-12-07  dakgootje: This reason why a great many got this puzzle is for the reason Dzechiel posted earlier on: <(...) the rook sac on h7 and it was obvious that this was the key move. The rest practically plays itself.>

A relative obvious combination overal. The moment I erred was when I suffered a little from chessblindness and thought 37. Qh5 would win the full rook, of course totally ignoring blacks bishop.

Jan-12-07  Marco65: <Less than a minute> <maybe 5 seconds> Unless someone finds a quicker win, the line with 33...Kxh7 requires 18 half-moves with some side variation to be fully analysed. And if you stop before you're just playing one exchange down.

If you calculated all that in less than a minute, kudos to you

Jan-12-07  Fisheremon: <LoveThatJoker: <pcvandelay: Hey guys, look back earlier at the game--what were whites intentions with 25.Qe3? Why waste a move going from e2-e3-d2, rather then directly t0 25.Qd2?>

Good comment, pcvandelay. I would venture to say that 25. Qe3 was a move that White decided to play so as to take control over the c1-h6 dark square diagonal with the intention of doing a bust up job on Black's K-side (as it eventually did happen in the game.)>

I'v had some time to look at your point. In the interval of 25-29 moves Black could make a strong move h5, but he didn't. I think <pcvandelay> was right: the Queen manoeuvre was wasted. White had to make two defensive moves g4 and a3, as he did neither Black's got some advantage in the Queen-side to 31st move, but suddenly a blunder (31...Qa3) followed, instead 31...Re7 with next Reb7 Black could get a serious advantage in the Queen-side due to the pawn structure in the Rook ending (quite likely).

Jan-12-07  nimzo knight: Got the begining moves, but didnt see the perpetual avoiding Qh6+
Jan-12-07
Premium Chessgames Member
  kevin86: What's the matter with 38 ♖xe8 or does ♕e1+ start a perpetual?

Oops,I missed another one-I tried going without the rook sac at h7.

Jan-12-07  Kings Indian: Wow, i got a friday. Got this one all the way too.
Jan-12-07  thesonicvision: Very easy for a Friday. I would have
noticed this in a blitz game.
Jan-12-07  nimroy: Why did he need

33.Rxh7+?

It seems like he could have kept that rook and it would still have worked.

Jan-12-07  Shajmaty: <Chris1Clark: Either I'm getting better or friday is getting easier. Less than a minute to figure but also no idea why 38. Qh6+> U didn't (fully) solve this Friday then... neither have I, since I also missed 38. Qh6+! Followed by Qh5+ and Qxe8, it's even better than the "straight" 38. Rxe8 because of 38...Qc1+; 39. Kf2, Qf4+. White also wins here (after 40. Ke2), but not so easily.
Jan-12-07  Themofro: I agree, would have been much tougher with 32. White to move. 32. f5 is really nice, Rxh7 is also nice of course. Good example of the power of a half open file aimed at a semi exposed king.
Jan-12-07  Grampmaster: <kevin86 What's the matter with 38.Rxe8....>

I didn't see anything wrong with taking the black rook right away. True, Black gets a few checks in but White escapes after 38...Qc1+ with 39.Kf2! Qf4+ 40.Ke2 Qg4+ 41.Kd3 and heads for the shelter of d3 with his rook coming back to e3 and Black runs out of checks. White's queen then gets activated again with a check on e7 reuniting with his rook on e3.

Jan-12-07
Premium Chessgames Member
  playground player: Yahoo, solved a Friday puzzle! Got it all the way, too. Which makes me wonder why, when I played on-line last night, I played like a pure idiot. Chess has something important to tell us about the way the human mind works, if only we could understand the message.
Jan-12-07  YouRang: I didn't get it, but I was busy with other things so I only spent a minute looking at it.

(This way, I can pretend that I would have gotten it had I not been so busy.)

Jan-12-07  stingingturnip: Surprisingly easy for a friday.
Jan-12-07  jgil: <Chris1Clark: Either I'm getting better or friday is getting easier. Less than a minute to figure but also no idea why 38. Qh6+>

38. Qh6+ forces 38..Kf7 39.Qh5+ Kg7 40.Qxh8 and on to mate, while 38.Rxh8 Qc1+ 39.Kf2 (not Kh2 due to the perpetual check by the queen on c1 and f4 or if 40.g3 then checks on f1 and 2 [if not a mate by 40. g3 Qf2+ 41. Kh3 Qf1+ 42. Kh4 Qh1++]) 39..Qf4+ and white has several annyoing checks to deal with.

Jan-12-07  Dr.Lecter: easy.
Jan-12-07  devinjc: <nimroy> 33.Rxh7 was necessary because black has extra defensive resources, such as 33.Qh6+ Kf7. In fact, that is how I found the text-move, and hardly calculated anything; Qh6 seems the most natural way to attack, but then the Rh1 would not be involved. So why not get rid of it first?
Jan-12-07  devinjc: This game makes me question that, if they both have files, is there any point in connecting the rooks? I think not.
Jan-13-07  LoveThatJoker: <Fisheremon: <LoveThatJoker: <pcvandelay: Hey guys, look back earlier at the game--what were whites intentions with 25.Qe3? Why waste a move going from e2-e3-d2, rather then directly t0 25.Qd2?> Good comment, pcvandelay. I would venture to say that 25. Qe3 was a move that White decided to play so as to take control over the c1-h6 dark square diagonal with the intention of doing a bust up job on Black's K-side (as it eventually did happen in the game.)> I'v had some time to look at your point. In the interval of 25-29 moves Black could make a strong move h5, but he didn't. I think <pcvandelay> was right: the Queen manoeuvre was wasted. White had to make two defensive moves g4 and a3, as he did neither Black's got some advantage in the Queen-side to 31st move, but suddenly a blunder (31...Qa3) followed, instead 31...Re7 with next Reb7 Black could get a serious advantage in the Queen-side due to the pawn structure in the Rook ending (quite likely).>

Please include the remainder of my post, Fisheremon. For you only posted a part of it and you did not analyze the full extent of my idea.

Here is the rest:

LoveThatJoker: <pcvandelay: Hey guys, look back earlier at the game--what were whites intentions with 25.Qe3? Why waste a move going from e2-e3-d2, rather then directly t0 25.Qd2?>

<Good comment, pcvandelay. I would venture to say that 25. Qe3 was a move that White decided to play so as to take control over the c1-h6 dark square diagonal with the intention of doing a bust up job on Black's K-side (as it eventually did happen in the game.)

However, upon realizing that his Queen was on the same file as the Rook I think White just decided to play it safe "just in case" and put the Queen on d2. It goes without saying then that if this is what transpired that 25. Qd2 would have been better than 25. Qe3.

One final note after seeing how the game concluded, I would even say that 24. Qd2 would have been better followed by 25. Nh2 and 26. f4

What do you think?

LTJ>

I would just like to make note that 24. Qe2 was actually a good move, but it should have been followed up as I stated nearly 24 hours ago by 25. Qd2.

Thank you.

LTJ

P.S. Fisheremon, 31...Re7 still looks unsatisfactory because of the strong initiative-seeking 32. f5! -which was actually played in the game - and 33. Rxh7+! - which again was actually played in the game!

Jan-13-07  Fisheremon: <LoveThatJoker> From my analysis I understand that without moving g4 and a3 White's plan in the King-side much slower than Black's plan in the Queen-side.

So far as 31...Re7 32.f5 exf5 33.Rxh7+ Bxh7 34.Qh6+ Kh8 and White loses

Jan-15-07  LoveThatJoker: <Fisheremon: So far as 31...Re7 32.f5 exf5 33.Rxh7+ Bxh7 34.Qh6+ Kh8 and White loses.> Yes. Good analysis, Fisheremon. It could very well be that you are right on this one and that the Q-side operation by Black with the Rooks might give him better chances, but surely to say that White has nothing here is unfair to White. There might be something better for White than an all out sacrificial attack on the Kingside then.

LTJ

Jan-15-07  Fisheremon: <LoveThatJoker: <Fisheremon: So far as 31...Re7 32.f5 exf5 33.Rxh7+ Bxh7 34.Qh6+ Kh8 and White loses.> Yes. Good analysis, Fisheremon. It could very well be that you are right on this one and that the Q-side operation by Black with the Rooks might give him better chances, but surely to say that White has nothing here is unfair to White. There might be something better for White than an all out sacrificial attack on the Kingside then.

LTJ> I'm a Fisher fan, but sorry I couldn't find smth for White in this game. Still you could enjoy my analysis of Lagunow-Schneider, Hoi-Gulko, Motylev-Anand, etc.

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